Investment banking is a field that involves working with corporations, governments and other entities to raise capital by underwriting and issuing securities (both debt and equity) in the markets. Investment banks also provide advice on mergers and acquisitions, as well as help companies manage their risk through various financial instruments. The primary goal of investment bankers is to generate profits for their clients while minimizing risks. They often work with large corporations, governments or institutions to raise capital by issuing securities in the markets and providing advice on mergers and acquisitions. Investment banks can also help companies manage their risk through various financial instruments.